def run_backup():
"""
Main method that performs the backup.
"""
commandArgs = getArgs()
if commandArgs.version:
print("caatinga version: " + __version__)
exit(0)
settings = fn.getSettingsInstance(commandArgs)
lockFileName = settings.hostName + "-caatinga"
SettingsValidator().validate(settings)
bkHome = fn.getBackupHome(settings.backupLocation, settings.hostName)
lockFile = backup.getLockFile("/tmp", lockFileName)
outWriter = fn.getOutputWriter(commandArgs.verbose)
previousBackup = os.path.realpath(fn.getLatestLink(bkHome))
fn.runHooks(settings.preBackupHooksDir)
checkForRegisterOption(settings, commandArgs, bkHome)
insureBackupLocationIsRegistered(
settings.backupLocation,
settings.hostName)
lock(lockFile)
runNonBackupFunctions(bkHome, settings, commandArgs, outWriter, lockFile)
executeBackup(bkHome, previousBackup, settings, outWriter, lockFile)
runMaintenanceFunctions(bkHome, settings, outWriter)
fn.runHooks(settings.postBackupHooksDir)
def runWithHooks(optionFn, args, settings):
"""
Wrap the provided option call with the pre and post restore hooks.
"""
fn.runHooks(settings.preRestoreHooksDir)
optionFn(args, settings)
fn.runHooks(settings.postRestoreHooksDir)
def runNonBackupFunctions(bkHome, settings, commandArgs, outWriter, lockFile):
"""
Execute functions that do not pertain to actually performing a backup and
are more intended on pre-backup conditions.
"""
try:
checkForDeleteOldest(commandArgs, bkHome)
markPartialBackupForDeletion(bkHome)
checkForClean(commandArgs, bkHome, outWriter)
except CleanExitException:
fn.runHooks(settings.postBackupHooksDir)
backup.removeLockFile(lockFile)
raise
